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The invention relates to a heat accumulating type lime rotary kiln. The heat accumulating type lime rotary kiln comprises two rotary kilns, a cooler, a cooling fan, a charging device, an air blower and a waste gas emitting system, wherein the charging device comprises a charger, a charging trolley and a material pit; each rotary kiln comprises a kiln head and a kiln tail cover; the cooling fan is connected with the cooler; the cooler is connected with the rotary kilns via the kiln tail covers; each kiln head is provided with a nozzle and an auxiliary nozzle; each rotary kiln is provided with a pre-forger or a heat accumulating type pre-heater, the upper part of which is connected with the charging device, and the lower part of which is connected with the corresponding rotary kiln via each kiln head; the upper part of each pre-forger or each heat accumulating type pre-heater is provided with a gas inlet and outlet which is connected with the air blower via a No.1 three-way valve and is connected with the waste gas emitting system via a No.2 three-way valve. According to the invention, the heat accumulating type pre-heaters or the pre-forgers are arranged for preheating auxiliary combustion air; residual heat is utilized fully, and the production cost is reduced; dividing walls are used for heating and forging lime, so that high-purity carbon dioxide can be collected, and resources are utilized fully.
The invention relates to a heat accumulating type lime rotary kiln. The heat accumulating type lime rotary kiln comprises two rotary kilns, a cooler, a cooling fan, a charging device, an air blower and a waste gas emitting system, wherein the charging device comprises a charger, a charging trolley and a material pit; each rotary kiln comprises a kiln head and a kiln tail cover; the cooling fan is connected with the cooler; the cooler is connected with the rotary kilns via the kiln tail covers; each kiln head is provided with a nozzle and an auxiliary nozzle; each rotary kiln is provided with a pre-forger or a heat accumulating type pre-heater, the upper part of which is connected with the charging device, and the lower part of which is connected with the corresponding rotary kiln via each kiln head; the upper part of each pre-forger or each heat accumulating type pre-heater is provided with a gas inlet and outlet which is connected with the air blower via a No.1 three-way valve and is connected with the waste gas emitting system via a No.2 three-way valve. According to the invention, the heat accumulating type pre-heaters or the pre-forgers are arranged for preheating auxiliary combustion air; residual heat is utilized fully, and the production cost is reduced; dividing walls are used for heating and forging lime, so that high-purity carbon dioxide can be collected, and resources are utilized fully.
Heat accumulating type lime rotary kiln
JIA HUIPING (Autor:in)
08.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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